CN106867445A - A kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity and application - Google Patents
A kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity and application Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
A kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity and application, it is related to a kind of organic silicon adhesive and application.The invention solves the problems that existing additional organosilicon adhesive high temperature bonding intensity is not high, it is impossible to meet the problem of the performance bonding requirements high such as Aero-Space.Organic silicon adhesive is made up of first component and second component;First component is prepared from by the iron oxide red of the silicones of base containing phenyl maleimide, 110 2 silicon rubber, vinyl silicone oil, the gas-phase silica, chloroplatinic acid divinyl tetramethyl disiloxane and pretreatment of pretreatment;Second component is prepared from by the silicones of base containing phenyl maleimide, 110 2 silicon rubber, vinyl silicone oil, the gas-phase silica of pretreatment, the containing hydrogen silicone oil that hydrogen content is 1.5% and titanium dioxide color masterbatch;For the bonding of the outer thermal insulation tile of aerospace craft, strain isolating pad and body titanium alloy and span composite, temperature in use is 120 DEG C~350 DEG C.
Description
Technical field
The present invention relates to a kind of organic silicon adhesive and application.
Background technology
Additional organosilicon adhesive has high-low temperature resistant, corrosion-resistant, radiation hardness, insulating properties and good weatherability feature.Can
Bonded metal, plastics, rubber, glass etc., are widely used in the fields such as Aeronautics and Astronautics, electronics, machinery, building.Domestic pair adds
Shaping organic silicon adhesive has been studied, but the problem for existing is that high temperature bonding intensity is not high, is mainly used in doing fluid sealant, it is impossible to
Meet the requirement of the performance bonding high such as Aero-Space.
The content of the invention
The invention solves the problems that existing additional organosilicon adhesive high temperature bonding intensity is not high, it is impossible to meet Aero-Space etc.
The problem of high-performance bonding requirements, and a kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity and application are provided.
A kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity are made up of first component and second component;Described first group
It is 1 to divide with the mass ratio of second component:1;
Described first component press mass fraction by 12 parts~15 parts silicones of base containing phenyl maleimide, 40 parts~45 parts
110-2 silicon rubber, 10 parts~15 parts vinyl silicone oils, the gas-phase silica of 10 parts~15 parts pretreatments, 0.015 part~0.03 part
Chloroplatinic acid-divinyl tetramethyl disiloxane and the iron oxide red of 10 parts~12 parts pretreatments are prepared from;Described first group
Medium vinyl silicon oil viscosity is divided to be 2000mPas~4000mPas;
The gas-phase silica pre-processed in described first component is prepared according to the following steps:5 parts are weighed by mass fraction
~7 parts of HMDSs, 100 parts of gas-phase silicas and 100 parts of viscosity are the ethene of 2000mPas~4000mPas
Base silicone oil, 5 parts for then weighing~7 parts of HMDSs and 100 parts of gas-phase silicas are added to 100 parts of viscosity and are
In the vinyl silicone oil of 2000mPas~4000mPas, after closed stirring 1h~2h in banbury, being warming up to temperature is
160 DEG C~180 DEG C, under conditions of being 160 DEG C~180 DEG C in temperature, stirring reaction 2h~4h after cooling, is pre-processed
Gas-phase silica;The specific surface area of described gas-phase silica is 270m2/ g~300m2/g;
The iron oxide red pre-processed in described first component is prepared according to the following steps:Use quality percentage is 3%
~5% KH570 acetone solns soak 4110 iron oxide reds, are then dried in fume hood, are placed in baking oven after drying, heating
It is 180 DEG C~200 DEG C to temperature, under conditions of being 180 DEG C~200 DEG C in temperature, reacts 3h~4h, cools to room temperature with the furnace,
The iron oxide red for being pre-processed;
Described second component press mass fraction by 5 parts~10 parts silicones of base containing phenyl maleimide, 40 parts~50 parts
110-2 silicon rubber, 12 parts~15 parts vinyl silicone oils, 12 parts~15 parts gas-phase silica, 4 parts~6 parts hydrogen contents for pre-processing
It is that 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch are prepared from, described second component medium vinyl silicon oil viscosity is
2000mPas~4000mPas;The gas phase pre-processed in the gas-phase silica and first component that are pre-processed in described second component
White carbon is identical.
A kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity are used for aerospace craft outer thermal insulation tile, strain isolating
Pad is bonding with body titanium alloy and span composite, and temperature in use is -120 DEG C~350 DEG C.
The beneficial effects of the invention are as follows:The present invention passes through the surface treatment of reinforcer gas-phase silica, adds heat-resisting adding
Plus the iron oxide red of agent 4110, addition phenyl maleimide base silicones, hydrogeneous silicones high etc., prepare a kind of high strength heat resistant
Silicon rubber type adhesive, can be used for the bonding of aerospace craft thermally protective materials, adhesive room temperature shear strength >=7.0MPa,
350 DEG C of shear strength >=3.0MPa, intensity is substantially without decline after aging 48h.And commercially available organic silicon adhesive is bonded due to it
Intensity is not high, and room temperature shear strength is only 3~5MPa, and 350 DEG C of shear strengths are less than 1MPa, and high and low temperature resistance is poor, applicable for temperature
Generally -70~200 DEG C of degree, and only used as fluid sealant.
Iron oxide red is the metallic compound with oxidation-reduction effect, after adding in silicon rubber, in certain temperature
Can prevent, due to the radical reaction that oxidation is produced, so as to prevent the degraded under silicon rubber high temperature, to reach raising in the range of degree
The purpose of silicon rubber heat endurance.
Modified silicone resin in the adhesive is phenyl maleimide base silicones, and the structure silicones has excellent
Heat resistance and adhesive property, are remarkably improved the heat-resistant fine adhesive function energy of adhesive.
The curing agent of the adhesive is a kind of containing hydrogen silicone oil high, and hydrogen content is 1.5%, by containing hydrogen silicone oil hydrogen content and first
The mol ratio of all vinyl is 1.3 in component and second component:1 is matched.The catalyst for using is chloroplatinic acid-divinyl
Tetramethyl disiloxane.
Specific embodiment
Specific embodiment one:Present embodiment is a kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity by first
Component and second component are constituted;Described first component is 1 with the mass ratio of second component:1;
Described first component press mass fraction by 12 parts~15 parts silicones of base containing phenyl maleimide, 40 parts~45 parts
110-2 silicon rubber, 10 parts~15 parts vinyl silicone oils, the gas-phase silica of 10 parts~15 parts pretreatments, 0.015 part~0.03 part
Chloroplatinic acid-divinyl tetramethyl disiloxane and the iron oxide red of 10 parts~12 parts pretreatments are prepared from;Described first group
Medium vinyl silicon oil viscosity is divided to be 2000mPas~4000mPas;
The gas-phase silica pre-processed in described first component is prepared according to the following steps:5 parts are weighed by mass fraction
~7 parts of HMDSs, 100 parts of gas-phase silicas and 100 parts of viscosity are the ethene of 2000mPas~4000mPas
Base silicone oil, 5 parts for then weighing~7 parts of HMDSs and 100 parts of gas-phase silicas are added to 100 parts of viscosity and are
In the vinyl silicone oil of 2000mPas~4000mPas, after closed stirring 1h~2h in banbury, being warming up to temperature is
160 DEG C~180 DEG C, under conditions of being 160 DEG C~180 DEG C in temperature, stirring reaction 2h~4h after cooling, is pre-processed
Gas-phase silica;The specific surface area of described gas-phase silica is 270m2/ g~300m2/g;
The iron oxide red pre-processed in described first component is prepared according to the following steps:Use quality percentage is 3%
~5% KH570 acetone solns soak 4110 iron oxide reds, are then dried in fume hood, are placed in baking oven after drying, heating
It is 180 DEG C~200 DEG C to temperature, under conditions of being 180 DEG C~200 DEG C in temperature, reacts 3h~4h, cools to room temperature with the furnace,
The iron oxide red for being pre-processed;
Described second component press mass fraction by 5 parts~10 parts silicones of base containing phenyl maleimide, 40 parts~50 parts
110-2 silicon rubber, 12 parts~15 parts vinyl silicone oils, 12 parts~15 parts gas-phase silica, 4 parts~6 parts hydrogen contents for pre-processing
It is that 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch are prepared from, described second component medium vinyl silicon oil viscosity is
2000mPas~4000mPas;The gas phase pre-processed in the gas-phase silica and first component that are pre-processed in described second component
White carbon is identical.
The beneficial effect of present embodiment is:Present embodiment passes through the surface treatment of reinforcer gas-phase silica, adds
Plus the iron oxide red of heat-resisting additive 4110, addition phenyl maleimide base silicones, hydrogeneous silicones high etc., prepare a kind of high
Strength thermal resistant silicon rubber type adhesive, can be used for the bonding of aerospace craft thermally protective materials, and adhesive room temperature shear strength >=
7.0MPa, 350 DEG C of shear strength >=3.0MPa, intensity is substantially without decline after aging 48h.And commercially available organic silicon adhesive due to
Its adhesive strength is not high, and room temperature shear strength is only 3~5MPa, and 350 DEG C of shear strengths are less than 1MPa, and high and low temperature resistance is poor,
Applicable temperature is generally -70~200 DEG C, and is only used as fluid sealant.
Iron oxide red is the metallic compound with oxidation-reduction effect, after adding in silicon rubber, in certain temperature
Can prevent, due to the radical reaction that oxidation is produced, so as to prevent the degraded under silicon rubber high temperature, to reach raising in the range of degree
The purpose of silicon rubber heat endurance.
Modified silicone resin in the adhesive is phenyl maleimide base silicones, and the structure silicones has excellent
Heat resistance and adhesive property, are remarkably improved the heat-resistant fine adhesive function energy of adhesive.
The curing agent of the adhesive is a kind of containing hydrogen silicone oil high, and hydrogen content is 1.5%, by containing hydrogen silicone oil hydrogen content and first
The mol ratio of all vinyl is 1.3 in component and second component:1 is matched.The catalyst for using is chloroplatinic acid-divinyl
Tetramethyl disiloxane.
Specific embodiment two:Present embodiment is with the difference of specific embodiment one:Described first component be by
Prepared by following steps:By mass fraction weigh 12 parts~15 parts silicones of base containing phenyl maleimide, 40 parts~45 parts
110-2 silicon rubber, 10 parts~15 parts vinyl silicone oils, the gas-phase silica of 10 parts~15 parts pretreatments, 0.015 part~0.03 part
Chloroplatinic acid-divinyl tetramethyl disiloxane and 10 parts~12 parts iron oxide reds of pretreatment, 12 parts for then weighing~
15 parts of silicones of base containing phenyl maleimide, 40 parts~45 parts 110-2 silicon rubber, 10 parts~15 parts vinyl silicone oils, 10 parts
~15 parts of gas-phase silicas of pretreatment, 0.015 part~0.03 part chloroplatinic acid-divinyl tetramethyl disiloxane and 10 parts~
In 12 parts of iron oxide red input banburies of pretreatment, under conditions of being 100 DEG C~120 DEG C in temperature, closed stirring 2h~3h,
After cooling, ground 2 times~3 times on three roller grinding distribution machines, obtain first component.Other are identical with specific embodiment one.
Specific embodiment three:Present embodiment is with the difference of one of specific embodiment one or two:Described second
Component is prepared according to the following steps:By mass fraction weigh 5 parts~10 parts silicones of base containing phenyl maleimide, 40 parts~
50 parts of 110-2 silicon rubber, 12 parts~15 parts vinyl silicone oils, the gas-phase silica of 12 parts~15 parts pretreatments, 4 parts~6 parts contain
Hydrogen amount be 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch, 5 parts for then weighing~10 parts contain benzyl maleimide
Amido silicones, 40 parts~50 parts 110-2 silicon rubber, 12 parts~15 parts vinyl silicone oils, 12 parts~15 parts gas phases for pre-processing
White carbon, 4 parts~6 parts hydrogen contents be 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch input banbury in, in temperature
Under conditions of for 100 DEG C~120 DEG C, closed stirring 2h~3h after cooling, grinds 2 times~3 times on three roller grinding distribution machines,
Obtain second component.Other are identical with specific embodiment one or two.
Specific embodiment four:Present embodiment is with the difference of one of specific embodiment one to three:Described first
Component press mass fraction by 15 parts of silicones of base containing phenyl maleimide, 45 parts of 110-2 silicon rubber, 13 parts of vinyl silicone oils,
13 parts of gas-phase silicas of pretreatment, 0.015 part of chloroplatinic acid-divinyl tetramethyl disiloxane and 10 parts of oxidations of pretreatment
Iron oxide red is prepared from;Described first component medium vinyl silicon oil viscosity is 3200mPas.Other with specific embodiment one to
Three is identical.
Specific embodiment five:Present embodiment is with the difference of one of specific embodiment one to four:Described first
The gas-phase silica pre-processed in component is prepared according to the following steps:By mass fraction weigh 5 parts of HMDSs,
100 parts of gas-phase silicas and 100 parts of viscosity are the vinyl silicone oil of 3200mPas, the 5 parts of silicon of hexamethyl two that then will be weighed
Azane and 100 parts of gas-phase silicas are added in the vinyl silicone oil that 100 parts of viscosity are 3200mPas, closed in banbury
After stirring 1h, temperature is warming up to for 180 DEG C, under conditions of being 180 DEG C in temperature, stirring reaction 4h after cooling, is pre-processed
Gas-phase silica;The specific surface area of described gas-phase silica is 290m2/g.Other and the phase of specific embodiment one to four
Together.
Specific embodiment six:Present embodiment is with the difference of one of specific embodiment one to five:Described first
The iron oxide red pre-processed in component is prepared according to the following steps:Use quality percentage is 5% KH570 acetone solns general
4110 iron oxide reds are soaked, and are then dried in fume hood, are placed in baking oven after drying, and are heated to temperature for 180 DEG C, are in temperature
Under conditions of 180 DEG C, 4h is reacted, cool to room temperature with the furnace, the iron oxide red for being pre-processed.Other and specific embodiment one
It is identical to five.
Specific embodiment seven:Present embodiment is with the difference of one of specific embodiment one to six:Described second
Component presses mass fraction by 5 parts of silicones of base containing phenyl maleimide, 40 parts of 110-2 silicon rubber, 12 parts of vinyl silicone oils, 12
The gas-phase silica of part pretreatment, 6 parts of hydrogen contents are that 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch are prepared from, institute
The second component medium vinyl silicon oil viscosity stated is 3200mPas.Other are identical with specific embodiment one to six.
Specific embodiment eight:Present embodiment is that a kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity are used for
The outer thermal insulation tile of aerospace craft, strain isolating pad and body titanium alloy and span composite it is bonding, temperature in use is -120
DEG C~350 DEG C.
The beneficial effect of present embodiment is:Present embodiment passes through the surface treatment of reinforcer gas-phase silica, adds
Plus the iron oxide red of heat-resisting additive 4110, addition phenyl maleimide base silicones, hydrogeneous silicones high etc., prepare a kind of high
Strength thermal resistant silicon rubber type adhesive, can be used for the bonding of aerospace craft thermally protective materials, and adhesive room temperature shear strength >=
7.0MPa, 350 DEG C of shear strength >=3.0MPa, intensity is substantially without decline after aging 48h.And commercially available organic silicon adhesive due to
Its adhesive strength is not high, and room temperature shear strength is only 3~5MPa, and 350 DEG C of shear strengths are less than 1MPa, and high and low temperature resistance is poor,
Applicable temperature is generally -70~200 DEG C, and is only used as fluid sealant.
Iron oxide red is the metallic compound with oxidation-reduction effect, after adding in silicon rubber, in certain temperature
Can prevent, due to the radical reaction that oxidation is produced, so as to prevent the degraded under silicon rubber high temperature, to reach raising in the range of degree
The purpose of silicon rubber heat endurance.
Modified silicone resin in the adhesive is phenyl maleimide base silicones, and the structure silicones has excellent
Heat resistance and adhesive property, are remarkably improved the heat-resistant fine adhesive function energy of adhesive.
The curing agent of the adhesive is a kind of containing hydrogen silicone oil high, and hydrogen content is 1.5%, by containing hydrogen silicone oil hydrogen content and first
The mol ratio of all vinyl is 1.3 in component and second component:1 is matched.The catalyst for using is chloroplatinic acid-divinyl
Tetramethyl disiloxane.
Specific embodiment nine:Present embodiment is with the difference of specific embodiment eight:A kind of described cold curing
The resistance to 350 DEG C of organic silicon adhesives of high intensity are specifically applied according to the following steps:By cold curing high intensity, resistance to 350 DEG C have
Machine silica gel stick is extruded into treats adhesives surface, after smearing uniformly, closes up after hanging 5min~8min, is compacted with hand or rubber-surfaced roll,
Then under conditions of bonding site is using gravity or vacuum pressed 0.04MPa~0.06MPa, room temperature pressurization 4h, room temperature after release
24h is placed, that is, completes a kind of application of the resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity.Other and specific embodiment
Eight is identical.
Using following verification experimental verifications effect of the present invention:
Embodiment one:The resistance to 350 DEG C of organic silicon adhesives of a kind of cold curing high intensity described in the present embodiment are by first component
And second component composition;Described first component is 1 with the mass ratio of second component:1;
Described first component press mass fraction by 15 parts of silicones of base containing phenyl maleimide, 45 parts of 110-2 silicon rubber,
13 parts of vinyl silicone oils, the gas-phase silicas of 13 parts of pretreatments, 0.015 part of chloroplatinic acid-divinyl tetramethyl disiloxane and
The iron oxide red of 10 parts of pretreatments is prepared from;Described first component medium vinyl silicon oil viscosity is 3200mPas;
The gas-phase silica pre-processed in described first component is prepared according to the following steps:5 parts are weighed by mass fraction
HMDS, 100 parts of gas-phase silicas and 100 parts of viscosity are the vinyl silicone oil of 3200mPas, then will be weighed
5 parts of HMDSs and 100 parts of gas-phase silicas be added to the vinyl silicone oil that 100 parts of viscosity are 3200mPas
In, after closed stirring 1h in banbury, temperature is warming up to for 180 DEG C, under conditions of being 180 DEG C in temperature, stirring reaction 4h,
After cooling, the gas-phase silica for being pre-processed;The specific surface area of described gas-phase silica is 290m2/g;
The iron oxide red pre-processed in described first component is prepared according to the following steps:Use quality percentage is 5%
KH570 acetone solns 4110 iron oxide reds are soaked, then dried in fume hood, be placed in baking oven after drying, be heated to temperature
It is 180 DEG C to spend, and under conditions of being 180 DEG C in temperature, reacts 4h, cools to room temperature with the furnace, the iron oxide red for being pre-processed;
Described second component press mass fraction by 5 parts of silicones of base containing phenyl maleimide, 40 parts of 110-2 silicon rubber,
12 parts of vinyl silicone oils, the gas-phase silica of 12 parts of pretreatments, 6 parts of hydrogen contents be 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide
Titanium color masterbatch is prepared from, and described second component medium vinyl silicon oil viscosity is 3200mPas;Pre-processed in described second component
Gas-phase silica with first component pre-process gas-phase silica it is identical.
Described first component is prepared according to the following steps:15 parts of silicon of base containing phenyl maleimide are weighed by mass fraction
Resin, 45 parts of 110-2 silicon rubber, 13 parts of vinyl silicone oils, 13 parts of gas-phase silica, 0.015 part of chloroplatinic acid-diethyl for pre-processing
Alkenyl tetramethyl disiloxane and 10 parts of iron oxide reds of pretreatment, the 15 parts of silicon of base containing phenyl maleimide that then will be weighed
Resin, 45 parts of 110-2 silicon rubber, 13 parts of vinyl silicone oils, 13 parts of gas-phase silica, 0.015 part of chloroplatinic acid-diethyl for pre-processing
It is close under conditions of being 120 DEG C in temperature in alkenyl tetramethyl disiloxane and 10 parts of iron oxide red input banburies of pretreatment
Stirring 2h is closed, after cooling, is ground 3 times on three roller grinding distribution machines, obtain first component;
Described second component is prepared according to the following steps:5 parts of silicon of base containing phenyl maleimide are weighed by mass fraction
Resin, 40 parts of 110-2 silicon rubber, 12 parts of vinyl silicone oils, 12 parts of gas-phase silicas for pre-processing, 6 parts of hydrogen contents are 1.5%
Containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch, 5 parts of silicones of base containing phenyl maleimide, the 40 parts of 110-2 that then will be weighed
Silicon rubber, 12 parts of vinyl silicone oils, the gas-phase silica of 12 parts of pretreatments, 6 parts of hydrogen contents are 1.5% containing hydrogen silicone oil and 0.5
In part titanium dioxide color masterbatch input banbury, under conditions of being 120 DEG C in temperature, closed stirring 2h, after cooling, in the grinding of three rollers
Ground 3 times on dispersion machine, obtain second component.
First component and second component are fitted into bi-component AB ratio packing elements, piston is installed after standing 48h deaerations.Use
When install that static mixing tube extrusion is usable, the packaging can save conventional bicomponent organic silicon adhesive and first weigh when in use
After mix vacuum defoamation again these steps.
The resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity are extruded into and treat adhesives surface, after smearing uniformly, hung
Close up after 8min, be compacted with rubber-surfaced roll, then bonding site is using under conditions of vacuum pressed 0.04MPa, room temperature pressurization 4h, release
Room temperature places 24h afterwards, obtains glued part;Described treats that adhesives is titanium alloy TC 4.
Glued part is performed into shear strength test, the cold curing to the present embodiment according to GB/T7124-2008 standards
The resistance to 350 DEG C of organic silicon adhesives of high intensity perform 180 ° of peel strength tests according to GB/T2790-1995 standards, according to GB/
TGB/T 528-1998 standards perform tensile strength and elongation at break test, and test result is as shown in table 1:
Table 1
As shown in Table 1, adhesive room temperature shear strength >=7.0MPa, 350 DEG C of shear strength >=3.0MPa, after aging 48h
Intensity is substantially without decline.And commercially available organic silicon adhesive is not high due to its adhesive strength, room temperature shear strength is only 3~
5MPa, 350 DEG C of shear strengths are less than 1MPa, and high and low temperature resistance is poor, and Applicable temperature is generally -70~200 DEG C, and only as close
Sealing is used.
Claims (9)
1. a kind of a kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity, it is characterised in that cold curing high intensity resistance to 350
DEG C organic silicon adhesive is made up of first component and second component;Described first component is 1 with the mass ratio of second component:1;
Described first component presses mass fraction by 12 parts~15 parts silicones of base containing phenyl maleimide, 40 parts~45 parts 110-
2 silicon rubber, 10 parts~15 parts vinyl silicone oils, 10 parts~15 parts gas-phase silica, 0.015 part~0.03 part chlorine platinum for pre-processing
Acid-divinyl tetramethyl disiloxane and the iron oxide red of 10 parts~12 parts pretreatments are prepared from;In described first component
Vinyl silicone oil viscosity is 2000mPas~4000mPas;
The gas-phase silica pre-processed in described first component is prepared according to the following steps:5 parts~7 parts are weighed by mass fraction
HMDS, 100 parts of gas-phase silicas and 100 parts of viscosity are the vinyl silicon of 2000mPas~4000mPas
Oil, 5 parts for then weighing~7 parts of HMDSs and 100 parts of gas-phase silicas are added to 100 parts of viscosity and are
In the vinyl silicone oil of 2000mPas~4000mPas, after closed stirring 1h~2h in banbury, being warming up to temperature is
160 DEG C~180 DEG C, under conditions of being 160 DEG C~180 DEG C in temperature, stirring reaction 2h~4h after cooling, is pre-processed
Gas-phase silica;The specific surface area of described gas-phase silica is 270m2/ g~300m2/g;
The iron oxide red pre-processed in described first component is prepared according to the following steps:Use quality percentage is 3%~5%
KH570 acetone solns 4110 iron oxide reds are soaked, then dried in fume hood, be placed in baking oven after drying, be heated to temperature
It is 180 DEG C~200 DEG C to spend, and under conditions of being 180 DEG C~200 DEG C in temperature, reacts 3h~4h, cools to room temperature with the furnace, is obtained
The iron oxide red of pretreatment;
Described second component presses mass fraction by 5 parts~10 parts silicones of base containing phenyl maleimide, 40 parts~50 parts 110-2
Silicon rubber, 12 parts~15 parts vinyl silicone oils, 12 parts~15 parts gas-phase silicas for pre-processing, 4 parts~6 parts hydrogen contents are
1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch are prepared from, and described second component medium vinyl silicon oil viscosity is
2000mPas~4000mPas;The gas phase pre-processed in the gas-phase silica and first component that are pre-processed in described second component
White carbon is identical.
2. resistance to 350 DEG C of organic silicon adhesives of a kind of cold curing high intensity according to claim 1, it is characterised in that described
First component prepare according to the following steps:By mass fraction weigh 12 parts~15 parts silicones of base containing phenyl maleimide,
40 parts~45 parts 110-2 silicon rubber, 10 parts~15 parts vinyl silicone oils, 10 parts~15 parts gas-phase silica, 0.015 for pre-processing
Part~0.03 part of chloroplatinic acid-divinyl tetramethyl disiloxane and 10 parts~12 parts iron oxide reds of pretreatment, then will claim
12 parts for taking~15 parts of silicones of base containing phenyl maleimide, 40 parts~45 parts 110-2 silicon rubber, 10 parts~15 parts vinyl
Silicone oil, 10 parts~15 parts gas-phase silica, 0.015 part~0.03 part chloroplatinic acid-silica of divinyl tetramethyl two for pre-processing
It is closed under conditions of being 100 DEG C~120 DEG C in temperature in alkane and 10 parts~12 parts iron oxide red input banburies of pretreatment
Stirring 2h~3h, after cooling, grinds 2 times~3 times on three roller grinding distribution machines, obtains first component.
3. resistance to 350 DEG C of organic silicon adhesives of a kind of cold curing high intensity according to claim 1, it is characterised in that described
Second component prepare according to the following steps:5 parts~10 parts silicones of base containing phenyl maleimide, 40 are weighed by mass fraction
Part~50 parts of 110-2 silicon rubber, 12 parts~15 parts vinyl silicone oils, 12 parts~15 parts gas-phase silica, 4 parts~6 for pre-processing
Part hydrogen content be 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch, 5 parts for then weighing~10 parts of Malaysias containing phenyl
Imide silicones, 40 parts~50 parts 110-2 silicon rubber, 12 parts~15 parts vinyl silicone oils, 12 parts~15 parts pretreatments
Gas-phase silica, 4 parts~6 parts hydrogen contents be 1.5% containing hydrogen silicone oil and 0.5 part of titanium dioxide color masterbatch input banbury in,
Temperature is under conditions of 100 DEG C~120 DEG C, closed stirring 2h~3h after cooling, grinds 2 times~3 on three roller grinding distribution machines
It is secondary, obtain second component.
4. resistance to 350 DEG C of organic silicon adhesives of a kind of cold curing high intensity according to claim 1, it is characterised in that described
First component press mass fraction by 15 parts of silicones of base containing phenyl maleimide, 45 parts of 110-2 silicon rubber, 13 parts of vinyl silicon
What oil, 13 parts of gas-phase silicas for pre-processing, 0.015 part of chloroplatinic acid-divinyl tetramethyl disiloxane and 10 parts were pre-processed
Iron oxide red is prepared from;Described first component medium vinyl silicon oil viscosity is 3200mPas.
5. resistance to 350 DEG C of organic silicon adhesives of a kind of cold curing high intensity according to claim 1, it is characterised in that described
First component in pre-process gas-phase silica prepare according to the following steps:5 parts of silicon nitrogen of hexamethyl two are weighed by mass fraction
Alkane, 100 parts of gas-phase silicas and 100 parts of viscosity are the vinyl silicone oil of 3200mPas, the 5 parts of hexamethyls two that then will be weighed
Silazane and 100 parts of gas-phase silicas are added in the vinyl silicone oil that 100 parts of viscosity are 3200mPas, close in banbury
After closing stirring 1h, temperature is warming up to for 180 DEG C, under conditions of being 180 DEG C in temperature, stirring reaction 4h after cooling, obtains pre- place
The gas-phase silica of reason;The specific surface area of described gas-phase silica is 290m2/g。
6. resistance to 350 DEG C of organic silicon adhesives of a kind of cold curing high intensity according to claim 1, it is characterised in that described
First component in pre-process iron oxide red prepare according to the following steps:Use quality percentage be 5% KH570 acetone it is molten
Liquid soaks 4110 iron oxide reds, is then dried in fume hood, is placed in baking oven after drying, and temperature is heated to for 180 DEG C, in temperature
Spend under conditions of 180 DEG C, to react 4h, cool to room temperature with the furnace, the iron oxide red for being pre-processed.
7. resistance to 350 DEG C of organic silicon adhesives of a kind of cold curing high intensity according to claim 1, it is characterised in that described
Second component press mass fraction by 5 parts of silicones of base containing phenyl maleimide, 40 parts of 110-2 silicon rubber, 12 parts of vinyl silicon
Oil, the gas-phase silica of 12 parts of pretreatments, the containing hydrogen silicone oil that 6 parts of hydrogen contents are 1.5% and 0.5 part of titanium dioxide color masterbatch prepare and
Into described second component medium vinyl silicon oil viscosity is 3200mPas.
8. a kind of application of the resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity as claimed in claim 1, it is characterised in that
A kind of resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity are used for aerospace craft outer thermal insulation tile, strain isolating pad and body
The bonding of titanium alloy and span composite, temperature in use is -120 DEG C~350 DEG C.
9. a kind of application of the resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity according to claim 8, its feature exists
Specifically applied according to the following steps in a kind of described resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity:By room
The temperature solidification resistance to 350 DEG C of organic silicon adhesives of high intensity are extruded into treats adhesives surface, after smearing uniformly, after hanging 5min~8min
Close up, be compacted with hand or rubber-surfaced roll, under conditions of then bonding site is using gravity or vacuum pressed 0.04MPa~0.06MPa, room
Temperature pressurization 4h, room temperature places 24h after release, that is, complete a kind of application of the resistance to 350 DEG C of organic silicon adhesives of cold curing high intensity.
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CN107674633A (en) * | 2017-11-02 | 2018-02-09 | 嘉善天胶装饰材料有限公司 | A kind of mirror bottom dedicated weather-proof glue and preparation method thereof |
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CN115449330A (en) * | 2022-08-25 | 2022-12-09 | 黑龙江省科学院石油化学研究院 | Bi-component high-performance polyurethane sealant and preparation method and application thereof |
CN115449330B (en) * | 2022-08-25 | 2023-08-08 | 黑龙江省科学院石油化学研究院 | Double-component high-performance polyurethane sealant and preparation method and application thereof |
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